.menu-wrap .cabin-menu {
  display: block;
  flex: 1;
}

ul.menu-lv1 {
  display: block;
  line-height: 2.5rem;
}

ul.menu-lv1 > li {
  display: block;
  height: 2.5rem;
  overflow: hidden;
}

ul.menu-lv1 > li.exp {
  height: auto;
}

ul.menu-lv1 > li > .para-lv {
  display: block;
  height: 2.5rem;
  box-sizing: border-box;
  padding-left: 2.5rem;
  cursor: pointer;
  color: #333;
}

ul.menu-lv2 {
  display: block;
}

ul.menu-lv2 > li {
  display: block;
  height: 2.5rem;
  overflow: hidden;
}

ul.menu-lv2 > li.exp {
  height: auto;
}

ul.menu-lv2 > li > .para-lv {
  display: block;
  height: 2.5rem;
  box-sizing: border-box;
  padding-left: 2.5rem;
  cursor: pointer;
  font-size: 0.75rem;
}

ul.menu-lv3 {
  display: block;
}

ul.menu-lv3 > li {
  display: block;
  height: auto;
}

ul.menu-lv3 > li > .para-lv {
  display: block;
  height: 2.5rem;
  box-sizing: border-box;
  padding-left: 3.5rem;
  cursor: pointer;
  font-size: 0.75rem;
}